Welcome to your 2365 624 Inspection & testing
1.
A prospective fault current test is performed on an installation and the values of the short circuit and the earth fault conditions are noted. What should be recorded in the schedule of test results?
2.
A Zs reading is to be entered on a minor works certificate, what is the correct instrument used to determine this reading?
3.
A polarity test is performed on Edison screw lamp holders to?
4.
Which of the following is NOT classed as a live conductor?
5.
The person resonsible for issuing he Certificate after completion of an Initial Verification
6.
Which of the following instruments would be used to measure the resistance of an earth electrode?
7.
Continuity of Ring Final Conductors should be performed on initial verification using
8.
Before carrying out an insulation test which of the following is recommended doing
9.
The image represents which type of earthing system?
10.
On a new installation, which of the following should be made available to the person conducting the inspection and test?
11.
A surge protective device installed as part of a circuit should necessitate
12.
Why is it important to test an installation in the correct sequence?
13.
The Electricity at Work Regulations 1989 states that working live should in the first instance should
14.
Although BS7671 is not a statute document, compliance with it is considered to comply with the
15.
A low resistance ohmmeter should provide a short circuit current not less than
16.
When a non domestic installation is protected by an RCD, there shall be a fixed notice stating that
17.
The safest method of ensuring that a system is safe to work on is?
18.
Failure to get a reading of polarity using test method one could indicate
19.
BS7671 gives guidance on the installation of electrical systems. Although it is not a statute document, it closely interprets
20.
Three resistors of value 1.0Ω ; 1.2Ω; and 1.8Ω; are connected in series across a 24V supply. What is the total current drawn in the circuit?
21.
An installation comprising 8 circuits have individual insulation resistance readings of 250 MΩ;, 250MΩ, 250MΩ;, 250MΩ;, 250MΩ;, 250MΩ;, 20MΩ;, 2.2MΩ. What is the total insulation resistance reading when they are all tested together as a whole?
22.
When are GS38 leads required?
23.
An earth fault loop impedance tester should only allow test current to flow for
24.
The test designed to determine the correct connection of all the protective conductors within installation is known as the
25.
A Residual Current device should be tested with
26.
The correct scale for recording continuity of Ring Final Conductors is
27.
Test instruments should ideally be calibrated
28.
If 3 conductors equal in length and with a resistance of 0.25Ω each are connected in series what is the total resistance?
29.
If 3 conductors equal in length and with a resistance of 1.5Ω are connected in parallel, what is the total resistance?
30.
What is considered Low Voltage?
31.
It is recommended that test instruments are nulled to
32.
When completing an EIC on a TNCS system which box should be ticked in the means of earthing section
33.
If a copper conductor was halved in length the resistance would
34.
A BS EN 61009 30mA 32A RCBO is protecting a ring final circuit. When the circuit is tested with an RCD tester at 1 x rating of the RCD, how fast should it disconnect?
35.
BS7671 has a separate part designated solely to testing and inspection. The legal status of this document is that it is a
By Alan Rogers